WOW that is allot to wrap my head around, but I think I kinda got it. I heard about that regulator mounting change but never seen one hands on. I did think of the possible explosions hazard that it might create and kinda puckered a bit and cringed. that could also cause that problem . I guess I will have start by getting the meter out and run some tests to see if I can decipher which generator I have “a” or “b” generator. maybe I can find a schematic of those systems somewhere . thanks again for all the input